Post History
I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work...
#6: Post edited
by
Lorenzo Donati
·
2023-08-09T21:30:50Z (8 months ago)
Retagged.
#5: Post edited
by
coquelicot
·
2020-07-22T19:08:12Z (over 3 years ago)
grammar
I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect, a question that may be interesting for its own.- Here is a somewhat simplified schematic (snubber and some filtering cap not included)
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- I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I don't have this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect, a question that may be interesting for its own.
- Here is a somewhat simplified schematic (snubber and some filtering cap not included)
- 
#4: Post edited
by
coquelicot
·
2020-07-22T13:43:50Z (over 3 years ago)
- I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect, a question that may be interesting for its own.
- I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect, a question that may be interesting for its own.
- Here is a somewhat simplified schematic (snubber and some filtering cap not included)
- 
#3: Post edited
by
coquelicot
·
2020-07-22T13:08:22Z (over 3 years ago)
I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect.
- I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect, a question that may be interesting for its own.
#2: Post edited
by
coquelicot
·
2020-07-22T12:59:31Z (over 3 years ago)
I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration. After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect.
- I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration (the triac is a BTA16). After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect.
#1: Initial revision
by
coquelicot
·
2020-07-22T12:48:47Z (over 3 years ago)
Is it possible to use two zener diodes in series back to back to replace a diac?
I've accidentally burnt my dimmer with a short. It is a common dimmer with a triac/diac/pot of the simplest configuration. After replacing the triac, this still does not work, and I'm almost sure the problem is the DB3 diac (breakdown voltage at 32 V). I have not this beast in my lab, so, I would like to know if it is possible to use two 32V zener diodes in series, back-to-back, to obtain approximately the same effect.